With Coolibar, it's easy to find the UV clothing size that fits your child best. Just use the size charts here and order with confidence every time. To determine the correct size, match your child's measurements to the charts (weight is in pounds and all other measurements are in inches). If you have any questions regarding the fit of an item, talk to one of our Customer Service Representatives at 1-800-926-6509. They will be happy to help.

BABY SIZE CHART

MEASUREMENTS

6M

6 - 12M

12 - 18M

18 - 24M

HEIGHT (inches)

25 - 27

27 - 30

30 - 32

32 - 34

WEIGHT (pounds)

15 - 18

18 - 23

23 - 27

27 - 30

TODDLER SIZE CHART

MEASUREMENTS

2T

3T

HEIGHT (inches)

34 - 36

36 - 38

WEIGHT (pounds)

30 - 33

33 - 36

KID SIZE CHART

Measurements

XS 4

S 5-6

M 7-8

L 10-12

XL 14-16

HEIGHT

38-41

42-47

48-53

54-59

60-62

WEIGHT

35-38

39-48

49-68

69-95

96-115

CHEST

22

23-24

26-27

28-30

31-32

WAIST

22

22 1/2 - 23

23 1/2 - 24 1/2

25-26

27-29

HAT SIZE CHART

AGES/MEASUREMENTS

BABY0 - 6M

BABY6M - 12M

BABY12M - 24M

TODDLER2T - 3T

KIDS/M (4 - 8)

KIDL/XL (10 - 12)

HEAD (inches)

up to 17 1/2

18 - 18 1/2

18 1/2 - 19 1/2

19 1/2 - 20

20 - 21

21 - 22

HOW TO MEASURE YOUR CHILD'S RIGHT SIZEUse a soft tape measure.

Height: Stand in stocking feet, with feet together, back to the wall. Measure from crown of head to the floor.

Arm: Bend arm to 90 degrees. Place hand on hip. Start at center of back of neck measure across the shoulder to the elbow and down to the wrist. Number on inches equals your sleeve length.

Bust/Chest: With the arms relaxed down at sides, measure fullest part of bust/chest, keeping tape parallel to floor.

Neck: Measure around base of the neck (the lowest point of the neck). Number of inches equals the neck size.

Inseam: Take a pair of pants that fits you well. Measure from the crotch seam to the bottom of the hem. Number of inches equals inseam length.

Rise: Start the tape at the center back waist, run the tape between your legs, pulling comfortably at the crotch and up your natural waist. Total measurement is your rise.

Waist: Measure around your waist, against your skin (not over your shirt or pants) at the height you normally wear your pants.

Head: Measure around your head, from the center of your forehead, keeping tape straight and parallel to the floor. Measure around fullest part.

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Rated 3 out of
5 by
Fun in the sun2 from
New fit this yearI buy these swim shorts every year. The sizing has changed for 2017. The legs are more fitted which is nice and the fabric seems sturdier. However, the rise is now way too short and I had to constantly tell my daughter to pull up her swim shorts so her bum did not show. I wish Coolibar would get their sizing correct for children!

Date published: 2017-07-04

Rated 3 out of
5 by
SylviaT from
nice fabric but way too large!My 7-yr daughter is a typical size 7 and she fits in Coolibar surf shirt in size M (7~8) perfectly. However this swim short is waaaaaay too large! I cannot imagine how this short will fit any 7~8 old girl who maintains a normal/health weight. Have to return it.

Date published: 2016-12-31

Rated 3 out of
5 by
LilRhody from
Odd sizing this year :(I've been using these for my girls for years and the sizing has always run big, this year it is very odd and I'm so disappointed! The legs are very tight on my slim girls, the waist band is huge and the rise is much shorter so they look like they're always falling down. Very disappointed Coolibar.

Date published: 2016-06-26

Rated 5 out of
5 by
Julieosmith from
Love these swim shorts!These shorts are perfect for my twin girls. They fit great, dry fast, stay down, and are such good quality. My girls also have the swim skirts and quality is amazing. We love your products because of the modesty!

Date published: 2016-06-01

Rated 5 out of
5 by
Mroja1 from
very comfortableMy daughter loves her swin shorts. The soft stretchy material makes it very comfortable. She won't go swimming without them.

Date published: 2015-01-27

Rated 5 out of
5 by
taut2fly from
So happy!We are going south for a few days - my girls love these swim shorts - perfect fit and great delivery!!

Date published: 2014-11-11

Rated 5 out of
5 by
SUNSAFE2014 from
Comfortable and Sun SafeWith rising rates of skin cancer, wearing comfortable UV protective swim wear with greater skin coverage is a must for prevention of future skin cancer in our youth. My daughter is 10 and has been wearing these UV protective swim shorts and shirts or the zip-up Coolibar surf suit for 2 years. She loves having both sun safe options as she doesn't require as much sunscreen or need to stop for reapplication of as much sunscreen. With the increasing cost of sunscreen, I save money with these UV protective swimwear options by not having to use as much sunscreen. Although she usually wears size 10-12 in regular non-swim shorts she wears the size 6-8 in the Coolibar swim shorts and surf suit products as they run big. Perhaps offering a size 8-10 would help bridge the girls Coolibar size gap??? Thank you Coolibar for offering sun safe swim wear for the the pre-teen kids. These items are hard to find in designs and colors that are trendy for kids.

Date published: 2014-08-21

Rated 3 out of
5 by
wangkkk from
Girl's Swim ShortFirst time bought Coolibar Girl's Swim Short. Quality and design are par on a par with Nike and Speedo brands that I always buy for my daughter. However, there is no waist nylon strap. It is a major design overlook. There will be no one size fits all waist size and waist strap is essential to adjust the shorts to fit well on wearer.
I will give a 5 starts if there is waist strap.